Finding the Fourth Proportional to 78,384.98, 108,171.47 and 42,574.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,384.98 : 108,171.47 = 42,574.22 : x
2. Step 2: Convert to fraction form
   78,384.98/108,171.47 = 42,574.22/x
3. Step 3: Cross multiply
   78,384.98x = 108,171.47 × 42,574.22
4. Step 4: Simplify right side
   78,384.98x = 4,605,316,301.71
5. Step 5: Solve for x
   x = 4,605,316,301.71/78,384.98
6. Step 6: Final answer
   x = 58,752.53